From c7fe425ef3c5e8804f2f5de3d8fffedf5e2f1131 Mon Sep 17 00:00:00 2001 From: hardythe1 Date: Tue, 7 Apr 2015 15:58:05 +0530 Subject: added books --- ...ION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI.ipynb | 462 +++++++++++++++++++++ ...N_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_1.ipynb | 462 +++++++++++++++++++++ ...N_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_2.ipynb | 462 +++++++++++++++++++++ ...N_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_3.ipynb | 462 +++++++++++++++++++++ ...N_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_4.ipynb | 462 +++++++++++++++++++++ 5 files changed, 2310 insertions(+) create mode 100755 sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI.ipynb create mode 100755 sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_1.ipynb create mode 100755 sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_2.ipynb create mode 100755 sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_3.ipynb create mode 100755 sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_4.ipynb (limited to 'sample_notebooks/NIKHILESH DAMLE') diff --git a/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI.ipynb b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI.ipynb new file mode 100755 index 00000000..e025dd86 --- /dev/null +++ b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI.ipynb @@ -0,0 +1,462 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:02197244985b7dfa2823dacf9fac72c0a7536b50c383ffa1801ccf3066222ec3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Radiation" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.7.1, PAGE NO.-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "# Variable declaration\n", + "\n", + "I_m = 15 #Current in Ampere\n", + "P_rad = 6 #Power radiated in kW\n", + "\n", + "#Calculation\n", + "\n", + "# By formula\n", + "I_rms = I_m/math.sqrt(2) #I_rms is r.m.s. current\n", + "\n", + "R_rad = P_rad/(I_rms**2) #R_rad is radiation resistance\n", + "\n", + "#Result\n", + "\n", + "print \"The radiation resistance of Antenna is\",round(R_rad*1000,2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The radiation resistance of Antenna is 53.33 kW\n" + ] + } + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.1,PAGE NO.-42" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt \n", + "from sympy import Symbol\n", + "\n", + "# Variable Declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = Lm/25 # Length of dipole for Hertian dipole\n", + "H_phi = 5 # Magnetic field strength in uA/m\n", + "theta = pi/2\n", + "r = 2 # Distance in Km\n", + "dL_1 = Lm/2 # Length of dipole for Half wave dipole \n", + "R_rad = 73 # Radiation resistance for half wave dipole in ohm\n", + "R_rad1 = 36.5 # Radiation resistance for quarter wave monopole in ohm\n", + "dL_2 = Lm/4 # Length of dipole for quarter wave monopole \n", + "\n", + "# Calculation\n", + "\n", + "# By formula : H_phi = I_m*dL*sin(theta)/2*Lm*r\n", + "I_m = (H_phi*2*Lm*r)/(dL*sin(theta))\n", + "I_rms = I_m/sqrt(2)\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*(I_rms**2)\n", + "I_m1 = (H_phi*2*pi*r*sin(theta))/(cos(pi/2*cos(theta)))\n", + "I_rms1 = I_m1/sqrt(2)\n", + "P_rad1 = (I_rms1**2)*R_rad\n", + "P_rad2 = (I_rms1**2)*R_rad1\n", + "\n", + "# Result\n", + "\n", + "print \" The power radiated by hertzian dipole is \",round(P_rad*10**-3,2),\"mW\"\n", + "print \" The power radiated by half wave dipole is \",round(P_rad1*10**-3,2),\"mW\"\n", + "print \" The power radiated by Quarter wave monopole is \",round(P_rad2*10**-3,2),\"mW\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.2,PAGE NO.-43" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt\n", + "\n", + "\n", + "\n", + "#variable declaration \n", + "\n", + "\n", + "E_theta = 10*(10**(-6)) #Electric field strength in V/m\n", + "theta = pi/2 #observation angle\n", + "r = 500*(10**3) #distance in metrs\n", + "f = 50*(10**6) #frequency in Hertz\n", + "c = 3*(10**8) #speed of light in m/sec\n", + "R_rad = 73 #for half wave dipole Radiation resistance in ohms\n", + "\n", + "\n", + "# calculation\n", + "lamda = c/f\n", + "L = lamda/2 #L is the length of half wave dipole\n", + "# formula : E=((60*I_m)/r)*((cos(pi/2*cos(theta)))*sin(theta))\n", + "I_m = (E_theta*r*sin(theta))/(60*cos(pi/2*cos(theta)))\n", + "I_rms = I_m/sqrt(2)\n", + "P_avg = (R_rad*(I_m**2))/2\n", + "\n", + "#Result\n", + "\n", + "print \"Length of Dipole is\" ,round(L,2),\"metres\"\n", + "print \"Current fed to Antenna\",round(I_rms*1000,2),\"mA\"\n", + "print \"Average Power\",round(P_avg*1000,2),\"mW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.3,PAGE NO.-44" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 100 #effective hieght in m\n", + "f = 60*(10**3) #frequency in Hertz\n", + "r = 100*(10**3) #Distance in m\n", + "c = 3*(10**8) #Speed of light in m/sec\n", + "P_rad = 100*(10**3) #radiated power\n", + "\n", + "# calculation\n", + "\n", + "lamda = c/f\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "I_rms = sqrt(P_rad/R_rad)\n", + "E_rms = (120*pi*l_eff*(I_rms**2))/(lamda*r)\n", + "\n", + "# Results\n", + "\n", + "print \"Strength of Electric field\",round(E_rms,2),\"V/m\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.4,PAGE NO.-45" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 113.3 #Effective length in metres\n", + "lamda = 18.8 #Wavelength in metres\n", + "I_rms = 725 #Base current in Ampere\n", + "r = 175 #Distance in metre\n", + "Eta_o = 120*pi\n", + "\n", + "#Calculation\n", + "\n", + "E = (120*pi*l_eff*I_rms)/(lamda*r)\n", + "H = E/Eta_o\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "P_rad = (I_rms**2)*(R_rad)\n", + "\n", + "#Result\n", + "\n", + "print \"The electric field at a distance r is \",round(E*0.001,2),\"mV/m\"\n", + "print \"The H field is\",round(H,2),\"uA/m\"\n", + "print \"The power radiated by Antenna is \",round(P_rad*(10**(-9)),2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.5,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin\n", + "\n", + "# variable declaration\n", + "\n", + "lamda = 10*(10**(-2)) # In cm\n", + "r = 200*(10**(-2)) # In cm\n", + "theta = 90 # In Degrees\n", + "phi = 0 # In Degrees\n", + "IdL = 3*(10**(-4)) # current distribution in Am\n", + "\n", + "#Calculation\n", + "\n", + "E_theta = (60*pi*IdL*sin(theta))/(lamda*r)\n", + "\n", + "#Result\n", + "\n", + "print \"The magnitude of component E_theta is \",round(E_theta,2),\"V/m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.6,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "dL = lamda/12\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 80*(pi**2)*((dL/lamda)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole antenna is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.7,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "I_m = 100 # uniform current in ampere\n", + "Lm = Symbol('Lm') #Taking Lm as lamda\n", + "dL = Lm/16\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*((I_m/sqrt(2))**2)\n", + "R_rad = 80*(pi**2)*((dL/Lm)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.8,PAGE NO.-47" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variable declaration\n", + "\n", + "f = 30*(10**6) #Frequency in Hz\n", + "c = 3*(10**8) #speed of light in m/s\n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "\n", + "#Result\n", + "\n", + "print \"The Length of Half wave dipole is \",round((lamda/2),2),\"m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.10,PAGE NO.-48" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin,sqrt \n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = 0.01*Lm # Length of dipole \n", + "theta = 45\n", + "P_rad = 1 # Power radiated in kW\n", + "phi = 90\n", + "r = 1 # Distance in Km\n", + "Eta_o=120*pi\n", + "\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 20*(pi**2)*((dL/Lm)**2)\n", + "I_m = sqrt(2*P_rad*R_rad)\n", + "\n", + "# formula : P = (Eta_o/2)*(((Omega*I_m*dL*sin(theta))/(4*pi*r*v))**2)\n", + "P = (Eta_o/2)*(((I_m*dL*sin(theta))/(4*pi*(r**2)))**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Power density is \",P,\"Watt/m^2\"\n", + "\n", + "# Note : The Solving in the book is wrong they put 0.1 instead of 0.1*lamda \n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.11,PAGE NO.-49" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi \n", + "\n", + "# variable declaration\n", + "\n", + "dL = 75 #Length of dipole in m\n", + "f = 800 # Frequency in kHz\n", + "I_rms = 10 #rms Current in Amp\n", + "c = 3*(10**8) #Speed of light in m/s \n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "P_rad = 80*(pi**2)*((dL/lamda)**2)*(I_rms**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Total Power radiated by Antenna is \",round(P_rad*1000,2),\"kW\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + } + ], + "metadata": {} + } + ] +} \ No newline at end of file diff --git a/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_1.ipynb b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_1.ipynb new file mode 100755 index 00000000..e025dd86 --- /dev/null +++ b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_1.ipynb @@ -0,0 +1,462 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:02197244985b7dfa2823dacf9fac72c0a7536b50c383ffa1801ccf3066222ec3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Radiation" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.7.1, PAGE NO.-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "# Variable declaration\n", + "\n", + "I_m = 15 #Current in Ampere\n", + "P_rad = 6 #Power radiated in kW\n", + "\n", + "#Calculation\n", + "\n", + "# By formula\n", + "I_rms = I_m/math.sqrt(2) #I_rms is r.m.s. current\n", + "\n", + "R_rad = P_rad/(I_rms**2) #R_rad is radiation resistance\n", + "\n", + "#Result\n", + "\n", + "print \"The radiation resistance of Antenna is\",round(R_rad*1000,2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The radiation resistance of Antenna is 53.33 kW\n" + ] + } + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.1,PAGE NO.-42" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt \n", + "from sympy import Symbol\n", + "\n", + "# Variable Declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = Lm/25 # Length of dipole for Hertian dipole\n", + "H_phi = 5 # Magnetic field strength in uA/m\n", + "theta = pi/2\n", + "r = 2 # Distance in Km\n", + "dL_1 = Lm/2 # Length of dipole for Half wave dipole \n", + "R_rad = 73 # Radiation resistance for half wave dipole in ohm\n", + "R_rad1 = 36.5 # Radiation resistance for quarter wave monopole in ohm\n", + "dL_2 = Lm/4 # Length of dipole for quarter wave monopole \n", + "\n", + "# Calculation\n", + "\n", + "# By formula : H_phi = I_m*dL*sin(theta)/2*Lm*r\n", + "I_m = (H_phi*2*Lm*r)/(dL*sin(theta))\n", + "I_rms = I_m/sqrt(2)\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*(I_rms**2)\n", + "I_m1 = (H_phi*2*pi*r*sin(theta))/(cos(pi/2*cos(theta)))\n", + "I_rms1 = I_m1/sqrt(2)\n", + "P_rad1 = (I_rms1**2)*R_rad\n", + "P_rad2 = (I_rms1**2)*R_rad1\n", + "\n", + "# Result\n", + "\n", + "print \" The power radiated by hertzian dipole is \",round(P_rad*10**-3,2),\"mW\"\n", + "print \" The power radiated by half wave dipole is \",round(P_rad1*10**-3,2),\"mW\"\n", + "print \" The power radiated by Quarter wave monopole is \",round(P_rad2*10**-3,2),\"mW\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.2,PAGE NO.-43" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt\n", + "\n", + "\n", + "\n", + "#variable declaration \n", + "\n", + "\n", + "E_theta = 10*(10**(-6)) #Electric field strength in V/m\n", + "theta = pi/2 #observation angle\n", + "r = 500*(10**3) #distance in metrs\n", + "f = 50*(10**6) #frequency in Hertz\n", + "c = 3*(10**8) #speed of light in m/sec\n", + "R_rad = 73 #for half wave dipole Radiation resistance in ohms\n", + "\n", + "\n", + "# calculation\n", + "lamda = c/f\n", + "L = lamda/2 #L is the length of half wave dipole\n", + "# formula : E=((60*I_m)/r)*((cos(pi/2*cos(theta)))*sin(theta))\n", + "I_m = (E_theta*r*sin(theta))/(60*cos(pi/2*cos(theta)))\n", + "I_rms = I_m/sqrt(2)\n", + "P_avg = (R_rad*(I_m**2))/2\n", + "\n", + "#Result\n", + "\n", + "print \"Length of Dipole is\" ,round(L,2),\"metres\"\n", + "print \"Current fed to Antenna\",round(I_rms*1000,2),\"mA\"\n", + "print \"Average Power\",round(P_avg*1000,2),\"mW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.3,PAGE NO.-44" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 100 #effective hieght in m\n", + "f = 60*(10**3) #frequency in Hertz\n", + "r = 100*(10**3) #Distance in m\n", + "c = 3*(10**8) #Speed of light in m/sec\n", + "P_rad = 100*(10**3) #radiated power\n", + "\n", + "# calculation\n", + "\n", + "lamda = c/f\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "I_rms = sqrt(P_rad/R_rad)\n", + "E_rms = (120*pi*l_eff*(I_rms**2))/(lamda*r)\n", + "\n", + "# Results\n", + "\n", + "print \"Strength of Electric field\",round(E_rms,2),\"V/m\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.4,PAGE NO.-45" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 113.3 #Effective length in metres\n", + "lamda = 18.8 #Wavelength in metres\n", + "I_rms = 725 #Base current in Ampere\n", + "r = 175 #Distance in metre\n", + "Eta_o = 120*pi\n", + "\n", + "#Calculation\n", + "\n", + "E = (120*pi*l_eff*I_rms)/(lamda*r)\n", + "H = E/Eta_o\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "P_rad = (I_rms**2)*(R_rad)\n", + "\n", + "#Result\n", + "\n", + "print \"The electric field at a distance r is \",round(E*0.001,2),\"mV/m\"\n", + "print \"The H field is\",round(H,2),\"uA/m\"\n", + "print \"The power radiated by Antenna is \",round(P_rad*(10**(-9)),2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.5,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin\n", + "\n", + "# variable declaration\n", + "\n", + "lamda = 10*(10**(-2)) # In cm\n", + "r = 200*(10**(-2)) # In cm\n", + "theta = 90 # In Degrees\n", + "phi = 0 # In Degrees\n", + "IdL = 3*(10**(-4)) # current distribution in Am\n", + "\n", + "#Calculation\n", + "\n", + "E_theta = (60*pi*IdL*sin(theta))/(lamda*r)\n", + "\n", + "#Result\n", + "\n", + "print \"The magnitude of component E_theta is \",round(E_theta,2),\"V/m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.6,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "dL = lamda/12\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 80*(pi**2)*((dL/lamda)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole antenna is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.7,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "I_m = 100 # uniform current in ampere\n", + "Lm = Symbol('Lm') #Taking Lm as lamda\n", + "dL = Lm/16\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*((I_m/sqrt(2))**2)\n", + "R_rad = 80*(pi**2)*((dL/Lm)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.8,PAGE NO.-47" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variable declaration\n", + "\n", + "f = 30*(10**6) #Frequency in Hz\n", + "c = 3*(10**8) #speed of light in m/s\n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "\n", + "#Result\n", + "\n", + "print \"The Length of Half wave dipole is \",round((lamda/2),2),\"m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.10,PAGE NO.-48" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin,sqrt \n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = 0.01*Lm # Length of dipole \n", + "theta = 45\n", + "P_rad = 1 # Power radiated in kW\n", + "phi = 90\n", + "r = 1 # Distance in Km\n", + "Eta_o=120*pi\n", + "\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 20*(pi**2)*((dL/Lm)**2)\n", + "I_m = sqrt(2*P_rad*R_rad)\n", + "\n", + "# formula : P = (Eta_o/2)*(((Omega*I_m*dL*sin(theta))/(4*pi*r*v))**2)\n", + "P = (Eta_o/2)*(((I_m*dL*sin(theta))/(4*pi*(r**2)))**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Power density is \",P,\"Watt/m^2\"\n", + "\n", + "# Note : The Solving in the book is wrong they put 0.1 instead of 0.1*lamda \n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.11,PAGE NO.-49" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi \n", + "\n", + "# variable declaration\n", + "\n", + "dL = 75 #Length of dipole in m\n", + "f = 800 # Frequency in kHz\n", + "I_rms = 10 #rms Current in Amp\n", + "c = 3*(10**8) #Speed of light in m/s \n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "P_rad = 80*(pi**2)*((dL/lamda)**2)*(I_rms**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Total Power radiated by Antenna is \",round(P_rad*1000,2),\"kW\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + } + ], + "metadata": {} + } + ] +} \ No newline at end of file diff --git a/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_2.ipynb b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_2.ipynb new file mode 100755 index 00000000..e025dd86 --- /dev/null +++ b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_2.ipynb @@ -0,0 +1,462 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:02197244985b7dfa2823dacf9fac72c0a7536b50c383ffa1801ccf3066222ec3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Radiation" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.7.1, PAGE NO.-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "# Variable declaration\n", + "\n", + "I_m = 15 #Current in Ampere\n", + "P_rad = 6 #Power radiated in kW\n", + "\n", + "#Calculation\n", + "\n", + "# By formula\n", + "I_rms = I_m/math.sqrt(2) #I_rms is r.m.s. current\n", + "\n", + "R_rad = P_rad/(I_rms**2) #R_rad is radiation resistance\n", + "\n", + "#Result\n", + "\n", + "print \"The radiation resistance of Antenna is\",round(R_rad*1000,2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The radiation resistance of Antenna is 53.33 kW\n" + ] + } + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.1,PAGE NO.-42" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt \n", + "from sympy import Symbol\n", + "\n", + "# Variable Declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = Lm/25 # Length of dipole for Hertian dipole\n", + "H_phi = 5 # Magnetic field strength in uA/m\n", + "theta = pi/2\n", + "r = 2 # Distance in Km\n", + "dL_1 = Lm/2 # Length of dipole for Half wave dipole \n", + "R_rad = 73 # Radiation resistance for half wave dipole in ohm\n", + "R_rad1 = 36.5 # Radiation resistance for quarter wave monopole in ohm\n", + "dL_2 = Lm/4 # Length of dipole for quarter wave monopole \n", + "\n", + "# Calculation\n", + "\n", + "# By formula : H_phi = I_m*dL*sin(theta)/2*Lm*r\n", + "I_m = (H_phi*2*Lm*r)/(dL*sin(theta))\n", + "I_rms = I_m/sqrt(2)\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*(I_rms**2)\n", + "I_m1 = (H_phi*2*pi*r*sin(theta))/(cos(pi/2*cos(theta)))\n", + "I_rms1 = I_m1/sqrt(2)\n", + "P_rad1 = (I_rms1**2)*R_rad\n", + "P_rad2 = (I_rms1**2)*R_rad1\n", + "\n", + "# Result\n", + "\n", + "print \" The power radiated by hertzian dipole is \",round(P_rad*10**-3,2),\"mW\"\n", + "print \" The power radiated by half wave dipole is \",round(P_rad1*10**-3,2),\"mW\"\n", + "print \" The power radiated by Quarter wave monopole is \",round(P_rad2*10**-3,2),\"mW\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.2,PAGE NO.-43" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt\n", + "\n", + "\n", + "\n", + "#variable declaration \n", + "\n", + "\n", + "E_theta = 10*(10**(-6)) #Electric field strength in V/m\n", + "theta = pi/2 #observation angle\n", + "r = 500*(10**3) #distance in metrs\n", + "f = 50*(10**6) #frequency in Hertz\n", + "c = 3*(10**8) #speed of light in m/sec\n", + "R_rad = 73 #for half wave dipole Radiation resistance in ohms\n", + "\n", + "\n", + "# calculation\n", + "lamda = c/f\n", + "L = lamda/2 #L is the length of half wave dipole\n", + "# formula : E=((60*I_m)/r)*((cos(pi/2*cos(theta)))*sin(theta))\n", + "I_m = (E_theta*r*sin(theta))/(60*cos(pi/2*cos(theta)))\n", + "I_rms = I_m/sqrt(2)\n", + "P_avg = (R_rad*(I_m**2))/2\n", + "\n", + "#Result\n", + "\n", + "print \"Length of Dipole is\" ,round(L,2),\"metres\"\n", + "print \"Current fed to Antenna\",round(I_rms*1000,2),\"mA\"\n", + "print \"Average Power\",round(P_avg*1000,2),\"mW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.3,PAGE NO.-44" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 100 #effective hieght in m\n", + "f = 60*(10**3) #frequency in Hertz\n", + "r = 100*(10**3) #Distance in m\n", + "c = 3*(10**8) #Speed of light in m/sec\n", + "P_rad = 100*(10**3) #radiated power\n", + "\n", + "# calculation\n", + "\n", + "lamda = c/f\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "I_rms = sqrt(P_rad/R_rad)\n", + "E_rms = (120*pi*l_eff*(I_rms**2))/(lamda*r)\n", + "\n", + "# Results\n", + "\n", + "print \"Strength of Electric field\",round(E_rms,2),\"V/m\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.4,PAGE NO.-45" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 113.3 #Effective length in metres\n", + "lamda = 18.8 #Wavelength in metres\n", + "I_rms = 725 #Base current in Ampere\n", + "r = 175 #Distance in metre\n", + "Eta_o = 120*pi\n", + "\n", + "#Calculation\n", + "\n", + "E = (120*pi*l_eff*I_rms)/(lamda*r)\n", + "H = E/Eta_o\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "P_rad = (I_rms**2)*(R_rad)\n", + "\n", + "#Result\n", + "\n", + "print \"The electric field at a distance r is \",round(E*0.001,2),\"mV/m\"\n", + "print \"The H field is\",round(H,2),\"uA/m\"\n", + "print \"The power radiated by Antenna is \",round(P_rad*(10**(-9)),2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.5,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin\n", + "\n", + "# variable declaration\n", + "\n", + "lamda = 10*(10**(-2)) # In cm\n", + "r = 200*(10**(-2)) # In cm\n", + "theta = 90 # In Degrees\n", + "phi = 0 # In Degrees\n", + "IdL = 3*(10**(-4)) # current distribution in Am\n", + "\n", + "#Calculation\n", + "\n", + "E_theta = (60*pi*IdL*sin(theta))/(lamda*r)\n", + "\n", + "#Result\n", + "\n", + "print \"The magnitude of component E_theta is \",round(E_theta,2),\"V/m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.6,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "dL = lamda/12\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 80*(pi**2)*((dL/lamda)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole antenna is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.7,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "I_m = 100 # uniform current in ampere\n", + "Lm = Symbol('Lm') #Taking Lm as lamda\n", + "dL = Lm/16\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*((I_m/sqrt(2))**2)\n", + "R_rad = 80*(pi**2)*((dL/Lm)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.8,PAGE NO.-47" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variable declaration\n", + "\n", + "f = 30*(10**6) #Frequency in Hz\n", + "c = 3*(10**8) #speed of light in m/s\n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "\n", + "#Result\n", + "\n", + "print \"The Length of Half wave dipole is \",round((lamda/2),2),\"m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.10,PAGE NO.-48" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin,sqrt \n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = 0.01*Lm # Length of dipole \n", + "theta = 45\n", + "P_rad = 1 # Power radiated in kW\n", + "phi = 90\n", + "r = 1 # Distance in Km\n", + "Eta_o=120*pi\n", + "\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 20*(pi**2)*((dL/Lm)**2)\n", + "I_m = sqrt(2*P_rad*R_rad)\n", + "\n", + "# formula : P = (Eta_o/2)*(((Omega*I_m*dL*sin(theta))/(4*pi*r*v))**2)\n", + "P = (Eta_o/2)*(((I_m*dL*sin(theta))/(4*pi*(r**2)))**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Power density is \",P,\"Watt/m^2\"\n", + "\n", + "# Note : The Solving in the book is wrong they put 0.1 instead of 0.1*lamda \n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.11,PAGE NO.-49" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi \n", + "\n", + "# variable declaration\n", + "\n", + "dL = 75 #Length of dipole in m\n", + "f = 800 # Frequency in kHz\n", + "I_rms = 10 #rms Current in Amp\n", + "c = 3*(10**8) #Speed of light in m/s \n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "P_rad = 80*(pi**2)*((dL/lamda)**2)*(I_rms**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Total Power radiated by Antenna is \",round(P_rad*1000,2),\"kW\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + } + ], + "metadata": {} + } + ] +} \ No newline at end of file diff --git a/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_3.ipynb b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_3.ipynb new file mode 100755 index 00000000..e025dd86 --- /dev/null +++ b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_3.ipynb @@ -0,0 +1,462 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:02197244985b7dfa2823dacf9fac72c0a7536b50c383ffa1801ccf3066222ec3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Radiation" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.7.1, PAGE NO.-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "# Variable declaration\n", + "\n", + "I_m = 15 #Current in Ampere\n", + "P_rad = 6 #Power radiated in kW\n", + "\n", + "#Calculation\n", + "\n", + "# By formula\n", + "I_rms = I_m/math.sqrt(2) #I_rms is r.m.s. current\n", + "\n", + "R_rad = P_rad/(I_rms**2) #R_rad is radiation resistance\n", + "\n", + "#Result\n", + "\n", + "print \"The radiation resistance of Antenna is\",round(R_rad*1000,2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The radiation resistance of Antenna is 53.33 kW\n" + ] + } + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.1,PAGE NO.-42" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt \n", + "from sympy import Symbol\n", + "\n", + "# Variable Declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = Lm/25 # Length of dipole for Hertian dipole\n", + "H_phi = 5 # Magnetic field strength in uA/m\n", + "theta = pi/2\n", + "r = 2 # Distance in Km\n", + "dL_1 = Lm/2 # Length of dipole for Half wave dipole \n", + "R_rad = 73 # Radiation resistance for half wave dipole in ohm\n", + "R_rad1 = 36.5 # Radiation resistance for quarter wave monopole in ohm\n", + "dL_2 = Lm/4 # Length of dipole for quarter wave monopole \n", + "\n", + "# Calculation\n", + "\n", + "# By formula : H_phi = I_m*dL*sin(theta)/2*Lm*r\n", + "I_m = (H_phi*2*Lm*r)/(dL*sin(theta))\n", + "I_rms = I_m/sqrt(2)\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*(I_rms**2)\n", + "I_m1 = (H_phi*2*pi*r*sin(theta))/(cos(pi/2*cos(theta)))\n", + "I_rms1 = I_m1/sqrt(2)\n", + "P_rad1 = (I_rms1**2)*R_rad\n", + "P_rad2 = (I_rms1**2)*R_rad1\n", + "\n", + "# Result\n", + "\n", + "print \" The power radiated by hertzian dipole is \",round(P_rad*10**-3,2),\"mW\"\n", + "print \" The power radiated by half wave dipole is \",round(P_rad1*10**-3,2),\"mW\"\n", + "print \" The power radiated by Quarter wave monopole is \",round(P_rad2*10**-3,2),\"mW\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.2,PAGE NO.-43" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt\n", + "\n", + "\n", + "\n", + "#variable declaration \n", + "\n", + "\n", + "E_theta = 10*(10**(-6)) #Electric field strength in V/m\n", + "theta = pi/2 #observation angle\n", + "r = 500*(10**3) #distance in metrs\n", + "f = 50*(10**6) #frequency in Hertz\n", + "c = 3*(10**8) #speed of light in m/sec\n", + "R_rad = 73 #for half wave dipole Radiation resistance in ohms\n", + "\n", + "\n", + "# calculation\n", + "lamda = c/f\n", + "L = lamda/2 #L is the length of half wave dipole\n", + "# formula : E=((60*I_m)/r)*((cos(pi/2*cos(theta)))*sin(theta))\n", + "I_m = (E_theta*r*sin(theta))/(60*cos(pi/2*cos(theta)))\n", + "I_rms = I_m/sqrt(2)\n", + "P_avg = (R_rad*(I_m**2))/2\n", + "\n", + "#Result\n", + "\n", + "print \"Length of Dipole is\" ,round(L,2),\"metres\"\n", + "print \"Current fed to Antenna\",round(I_rms*1000,2),\"mA\"\n", + "print \"Average Power\",round(P_avg*1000,2),\"mW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.3,PAGE NO.-44" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 100 #effective hieght in m\n", + "f = 60*(10**3) #frequency in Hertz\n", + "r = 100*(10**3) #Distance in m\n", + "c = 3*(10**8) #Speed of light in m/sec\n", + "P_rad = 100*(10**3) #radiated power\n", + "\n", + "# calculation\n", + "\n", + "lamda = c/f\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "I_rms = sqrt(P_rad/R_rad)\n", + "E_rms = (120*pi*l_eff*(I_rms**2))/(lamda*r)\n", + "\n", + "# Results\n", + "\n", + "print \"Strength of Electric field\",round(E_rms,2),\"V/m\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.4,PAGE NO.-45" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 113.3 #Effective length in metres\n", + "lamda = 18.8 #Wavelength in metres\n", + "I_rms = 725 #Base current in Ampere\n", + "r = 175 #Distance in metre\n", + "Eta_o = 120*pi\n", + "\n", + "#Calculation\n", + "\n", + "E = (120*pi*l_eff*I_rms)/(lamda*r)\n", + "H = E/Eta_o\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "P_rad = (I_rms**2)*(R_rad)\n", + "\n", + "#Result\n", + "\n", + "print \"The electric field at a distance r is \",round(E*0.001,2),\"mV/m\"\n", + "print \"The H field is\",round(H,2),\"uA/m\"\n", + "print \"The power radiated by Antenna is \",round(P_rad*(10**(-9)),2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.5,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin\n", + "\n", + "# variable declaration\n", + "\n", + "lamda = 10*(10**(-2)) # In cm\n", + "r = 200*(10**(-2)) # In cm\n", + "theta = 90 # In Degrees\n", + "phi = 0 # In Degrees\n", + "IdL = 3*(10**(-4)) # current distribution in Am\n", + "\n", + "#Calculation\n", + "\n", + "E_theta = (60*pi*IdL*sin(theta))/(lamda*r)\n", + "\n", + "#Result\n", + "\n", + "print \"The magnitude of component E_theta is \",round(E_theta,2),\"V/m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.6,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "dL = lamda/12\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 80*(pi**2)*((dL/lamda)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole antenna is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.7,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "I_m = 100 # uniform current in ampere\n", + "Lm = Symbol('Lm') #Taking Lm as lamda\n", + "dL = Lm/16\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*((I_m/sqrt(2))**2)\n", + "R_rad = 80*(pi**2)*((dL/Lm)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.8,PAGE NO.-47" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variable declaration\n", + "\n", + "f = 30*(10**6) #Frequency in Hz\n", + "c = 3*(10**8) #speed of light in m/s\n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "\n", + "#Result\n", + "\n", + "print \"The Length of Half wave dipole is \",round((lamda/2),2),\"m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.10,PAGE NO.-48" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin,sqrt \n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = 0.01*Lm # Length of dipole \n", + "theta = 45\n", + "P_rad = 1 # Power radiated in kW\n", + "phi = 90\n", + "r = 1 # Distance in Km\n", + "Eta_o=120*pi\n", + "\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 20*(pi**2)*((dL/Lm)**2)\n", + "I_m = sqrt(2*P_rad*R_rad)\n", + "\n", + "# formula : P = (Eta_o/2)*(((Omega*I_m*dL*sin(theta))/(4*pi*r*v))**2)\n", + "P = (Eta_o/2)*(((I_m*dL*sin(theta))/(4*pi*(r**2)))**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Power density is \",P,\"Watt/m^2\"\n", + "\n", + "# Note : The Solving in the book is wrong they put 0.1 instead of 0.1*lamda \n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.11,PAGE NO.-49" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi \n", + "\n", + "# variable declaration\n", + "\n", + "dL = 75 #Length of dipole in m\n", + "f = 800 # Frequency in kHz\n", + "I_rms = 10 #rms Current in Amp\n", + "c = 3*(10**8) #Speed of light in m/s \n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "P_rad = 80*(pi**2)*((dL/lamda)**2)*(I_rms**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Total Power radiated by Antenna is \",round(P_rad*1000,2),\"kW\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + } + ], + "metadata": {} + } + ] +} \ No newline at end of file diff --git a/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_4.ipynb b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_4.ipynb new file mode 100755 index 00000000..e025dd86 --- /dev/null +++ b/sample_notebooks/NIKHILESH DAMLE/ANTENNAS_AND_WAVE_PROPAGATION_BY_U.A_BAKSHI,_A.V_BAKSHI,_K.A_BAKSHI_4.ipynb @@ -0,0 +1,462 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:02197244985b7dfa2823dacf9fac72c0a7536b50c383ffa1801ccf3066222ec3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Radiation" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.7.1, PAGE NO.-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "# Variable declaration\n", + "\n", + "I_m = 15 #Current in Ampere\n", + "P_rad = 6 #Power radiated in kW\n", + "\n", + "#Calculation\n", + "\n", + "# By formula\n", + "I_rms = I_m/math.sqrt(2) #I_rms is r.m.s. current\n", + "\n", + "R_rad = P_rad/(I_rms**2) #R_rad is radiation resistance\n", + "\n", + "#Result\n", + "\n", + "print \"The radiation resistance of Antenna is\",round(R_rad*1000,2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The radiation resistance of Antenna is 53.33 kW\n" + ] + } + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.1,PAGE NO.-42" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt \n", + "from sympy import Symbol\n", + "\n", + "# Variable Declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = Lm/25 # Length of dipole for Hertian dipole\n", + "H_phi = 5 # Magnetic field strength in uA/m\n", + "theta = pi/2\n", + "r = 2 # Distance in Km\n", + "dL_1 = Lm/2 # Length of dipole for Half wave dipole \n", + "R_rad = 73 # Radiation resistance for half wave dipole in ohm\n", + "R_rad1 = 36.5 # Radiation resistance for quarter wave monopole in ohm\n", + "dL_2 = Lm/4 # Length of dipole for quarter wave monopole \n", + "\n", + "# Calculation\n", + "\n", + "# By formula : H_phi = I_m*dL*sin(theta)/2*Lm*r\n", + "I_m = (H_phi*2*Lm*r)/(dL*sin(theta))\n", + "I_rms = I_m/sqrt(2)\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*(I_rms**2)\n", + "I_m1 = (H_phi*2*pi*r*sin(theta))/(cos(pi/2*cos(theta)))\n", + "I_rms1 = I_m1/sqrt(2)\n", + "P_rad1 = (I_rms1**2)*R_rad\n", + "P_rad2 = (I_rms1**2)*R_rad1\n", + "\n", + "# Result\n", + "\n", + "print \" The power radiated by hertzian dipole is \",round(P_rad*10**-3,2),\"mW\"\n", + "print \" The power radiated by half wave dipole is \",round(P_rad1*10**-3,2),\"mW\"\n", + "print \" The power radiated by Quarter wave monopole is \",round(P_rad2*10**-3,2),\"mW\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.2,PAGE NO.-43" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sin,cos,pi,sqrt\n", + "\n", + "\n", + "\n", + "#variable declaration \n", + "\n", + "\n", + "E_theta = 10*(10**(-6)) #Electric field strength in V/m\n", + "theta = pi/2 #observation angle\n", + "r = 500*(10**3) #distance in metrs\n", + "f = 50*(10**6) #frequency in Hertz\n", + "c = 3*(10**8) #speed of light in m/sec\n", + "R_rad = 73 #for half wave dipole Radiation resistance in ohms\n", + "\n", + "\n", + "# calculation\n", + "lamda = c/f\n", + "L = lamda/2 #L is the length of half wave dipole\n", + "# formula : E=((60*I_m)/r)*((cos(pi/2*cos(theta)))*sin(theta))\n", + "I_m = (E_theta*r*sin(theta))/(60*cos(pi/2*cos(theta)))\n", + "I_rms = I_m/sqrt(2)\n", + "P_avg = (R_rad*(I_m**2))/2\n", + "\n", + "#Result\n", + "\n", + "print \"Length of Dipole is\" ,round(L,2),\"metres\"\n", + "print \"Current fed to Antenna\",round(I_rms*1000,2),\"mA\"\n", + "print \"Average Power\",round(P_avg*1000,2),\"mW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.3,PAGE NO.-44" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 100 #effective hieght in m\n", + "f = 60*(10**3) #frequency in Hertz\n", + "r = 100*(10**3) #Distance in m\n", + "c = 3*(10**8) #Speed of light in m/sec\n", + "P_rad = 100*(10**3) #radiated power\n", + "\n", + "# calculation\n", + "\n", + "lamda = c/f\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "I_rms = sqrt(P_rad/R_rad)\n", + "E_rms = (120*pi*l_eff*(I_rms**2))/(lamda*r)\n", + "\n", + "# Results\n", + "\n", + "print \"Strength of Electric field\",round(E_rms,2),\"V/m\"\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.4,PAGE NO.-45" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "l_eff = 113.3 #Effective length in metres\n", + "lamda = 18.8 #Wavelength in metres\n", + "I_rms = 725 #Base current in Ampere\n", + "r = 175 #Distance in metre\n", + "Eta_o = 120*pi\n", + "\n", + "#Calculation\n", + "\n", + "E = (120*pi*l_eff*I_rms)/(lamda*r)\n", + "H = E/Eta_o\n", + "R_rad = 160*(pi**2)*((l_eff/lamda)**2)\n", + "P_rad = (I_rms**2)*(R_rad)\n", + "\n", + "#Result\n", + "\n", + "print \"The electric field at a distance r is \",round(E*0.001,2),\"mV/m\"\n", + "print \"The H field is\",round(H,2),\"uA/m\"\n", + "print \"The power radiated by Antenna is \",round(P_rad*(10**(-9)),2),\"kW\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.5,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin\n", + "\n", + "# variable declaration\n", + "\n", + "lamda = 10*(10**(-2)) # In cm\n", + "r = 200*(10**(-2)) # In cm\n", + "theta = 90 # In Degrees\n", + "phi = 0 # In Degrees\n", + "IdL = 3*(10**(-4)) # current distribution in Am\n", + "\n", + "#Calculation\n", + "\n", + "E_theta = (60*pi*IdL*sin(theta))/(lamda*r)\n", + "\n", + "#Result\n", + "\n", + "print \"The magnitude of component E_theta is \",round(E_theta,2),\"V/m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.6,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "\n", + "# variable declaration\n", + "\n", + "dL = lamda/12\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 80*(pi**2)*((dL/lamda)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole antenna is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.7,PAGE NO.-46" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sqrt\n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "I_m = 100 # uniform current in ampere\n", + "Lm = Symbol('Lm') #Taking Lm as lamda\n", + "dL = Lm/16\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "P_rad = 80*(pi**2)*((dL/Lm)**2)*((I_m/sqrt(2))**2)\n", + "R_rad = 80*(pi**2)*((dL/Lm)**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Radiation resistance of dipole is \",round(R_rad,2),\"ohm\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.8,PAGE NO.-47" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variable declaration\n", + "\n", + "f = 30*(10**6) #Frequency in Hz\n", + "c = 3*(10**8) #speed of light in m/s\n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "\n", + "#Result\n", + "\n", + "print \"The Length of Half wave dipole is \",round((lamda/2),2),\"m\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.10,PAGE NO.-48" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi,sin,sqrt \n", + "from sympy import Symbol\n", + "# variable declaration\n", + "\n", + "Lm = Symbol('Lm') # Taking lamda as Lm\n", + "dL = 0.01*Lm # Length of dipole \n", + "theta = 45\n", + "P_rad = 1 # Power radiated in kW\n", + "phi = 90\n", + "r = 1 # Distance in Km\n", + "Eta_o=120*pi\n", + "\n", + "\n", + "\n", + "#Calculation\n", + "\n", + "R_rad = 20*(pi**2)*((dL/Lm)**2)\n", + "I_m = sqrt(2*P_rad*R_rad)\n", + "\n", + "# formula : P = (Eta_o/2)*(((Omega*I_m*dL*sin(theta))/(4*pi*r*v))**2)\n", + "P = (Eta_o/2)*(((I_m*dL*sin(theta))/(4*pi*(r**2)))**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Power density is \",P,\"Watt/m^2\"\n", + "\n", + "# Note : The Solving in the book is wrong they put 0.1 instead of 0.1*lamda \n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.9.11,PAGE NO.-49" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi \n", + "\n", + "# variable declaration\n", + "\n", + "dL = 75 #Length of dipole in m\n", + "f = 800 # Frequency in kHz\n", + "I_rms = 10 #rms Current in Amp\n", + "c = 3*(10**8) #Speed of light in m/s \n", + "\n", + "#Calculation\n", + "\n", + "lamda = c/f\n", + "P_rad = 80*(pi**2)*((dL/lamda)**2)*(I_rms**2)\n", + "\n", + "#Result\n", + "\n", + "print \"The Total Power radiated by Antenna is \",round(P_rad*1000,2),\"kW\"\n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [] + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit